iPhone 15 Pro Max crashing my ASUS router

Since I have my Iphone 15 Pro Max, my ASUS RT-AX88U Pro router keeps randomly crashing (it reboots). All my devices are disconnected for few minutes. It happens few times a day. If my iphone is not connected to my network, everything is fine.

I'm on a UPS. I did a hard reset on my router. My firmware is up to date (I even tried with an old firmware). I reseted my network setting on iphone. I tried to used only the 2.4Ghz band and then the 5Ghz. I contacted ASUS, whose engineers are looking for it. I contacted Apple, I still have to do a factory reset.

Anybody has any toughts?